Led Matrix: Unterschied zwischen den Versionen
found some nice setup of ICs for the MetaMatrix |
cleanup |
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For the columns we take almost the same components except that we don|t need the mosfets. the mosfet drivers (which consists of mosfets of course - in fact its a half bridge and so contains one pMOS and one nMOS FET) are strong enough to drive a high current led with a constant current of 0.5A and peak currents of 1.5A | For the columns we take almost the same components except that we don|t need the mosfets. the mosfet drivers (which consists of mosfets of course - in fact its a half bridge and so contains one pMOS and one nMOS FET) are strong enough to drive a high current led with a constant current of 0.5A and peak currents of 1.5A | ||
chips that might be usefull for this | chips that might be usefull for this | ||
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** [http://focus.ti.com/paramsearch/docs/parametricsearch.tsp?family=analog&familyId=356&uiTemplateId=NODE_STRY_PGE_T TPIC6C595, TPIC6B595, TPIC6A596] all simmilar to the above, ALL switch to ground | ** [http://focus.ti.com/paramsearch/docs/parametricsearch.tsp?family=analog&familyId=356&uiTemplateId=NODE_STRY_PGE_T TPIC6C595, TPIC6B595, TPIC6A596] all simmilar to the above, ALL switch to ground | ||
** [http://focus.ti.com/docs/prod/folders/print/tps1120.html TPS1120] Dual P-channel Enhancemenent-Mode MOSFET | ** [http://focus.ti.com/docs/prod/folders/print/tps1120.html TPS1120] Dual P-channel Enhancemenent-Mode MOSFET | ||
* On Semi | * On Semi | ||
** [http://www.onsemi.com/PowerSolutions/parametrics.do?id=809 MOSFETs] I think we|ll use one of thes for the rows | |||
** [http://www.onsemi.com/PowerSolutions/parametrics.do?id=809 MOSFETs] | ** [http://www.onsemi.com/PowerSolutions/parametrics.do?id=557 Shifting Registers] cheap :) | ||
** [http://www.onsemi.com/PowerSolutions/parametrics.do?id=557 Shifting Registers] | |||
=== FPGA LED Matrix Controller === | === FPGA LED Matrix Controller === | ||
an FPGA producing the correct signals to drive the above driver module, or drive many modules in paralell :) for each module we need 3pins | an FPGA producing the correct signals to drive the above driver module, or drive many modules in paralell :) for each module we need 3pins | ||